National Learning Corporation

Chief Lock Operator National Learning Corporation

The Chief Lock Operator Passbook(R) prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: electrical principles, machinery, tools and wiring; mechanical principles, equipment and tools; supervision; public contact principles and practices; canal mechanical, hydraulic and electrical equipment; and other related areas.